Before saving my game (overwriting data), I decided to quickly turned off my system to keep my previous save-point. When my DS turned on again, all game files were all wiped! All I see is "New Game" on the start menu.

What just happened?I don't know anything about this, and there's never been a warning for this happening before.

When you shut off or pull the game out of your DS(or whatever version of the DS you have) while its saving you run the risk of making it corrupt or erase the data, its better that you just let it save if its already overwriting the data

When you shut off or pull the game out of your DS(or whatever version of the DS you have) while its saving you run the risk of making it corrupt or erase the data, its better that you just let it save if its already overwriting the data

This. It happens in any game, not just HM. It's why you always get the "please don't remove the game cartridge or switch off the <insert name of console here> while saving" because the console will get confused and will lose all of your data because it's still processing all you did during that game. So yeah, just wait for it to save next time and you won't get the problem again.

IKR. I was scared to play any video game for like two weeks after the it deleted for fear of deleting another one. And i didn't play harvest moon for about a month or two, cuz i was reluctant to start over the game, now that all my work was wasted but later i did start over and now i'm pretty much where i was before so it's all good